<html>
<META http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<head>
<title>Section 10.22.&nbsp; Summary</title>
<link rel="STYLESHEET" type="text/css" href="images/style.css">
<link rel="STYLESHEET" type="text/css" href="images/docsafari.css">
</head>
<body>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr><td><div STYLE="MARGIN-LEFT: 0.15in;"><a href="toc.html"><img src="images/team.gif" width="60" height="17" border="0" align="absmiddle"  alt="Team BBL"></a></div></td>
<td align="right"><div STYLE="MARGIN-LEFT: 0.15in;">
<a href=ch10lev1sec21.html><img src="images/prev.gif" width="60" height="17" border="0" align="absmiddle" alt="Previous Page"></a>
<a href=ch10lev1sec23.html><img src="images/next.gif" width="60" height="17" border="0" align="absmiddle" alt="Next Page"></a>
</div></td></tr></table>
<br><table width="100%" border="0" cellspacing="0" cellpadding="0"><tr><td valign="top"><a name="ch10lev1sec22"></a>
<h3 class="docSection1Title">10.22. Summary</h3>
<p class="docText">Signals are used in most nontrivial applications. An understanding of the hows and whys of signal handling is essential to advanced UNIX System programming. This chapter has been a long and thorough look at UNIX System signals. We started by looking at the warts in previous implementations of signals and how they manifest themselves. We then proceeded to the POSIX.1 reliable-signal concept and all the related functions. Once we covered all these details, we were able to provide implementations of the POSIX.1 <tt>abort</tt>, <tt>system</tt>, and <tt>sleep</tt> functions. We finished with a look at the job-control signals and the ways that we can convert between signal names and signal numbers.</P>

<a href="17021535.html"><img src="images/pixel.gif" alt="" width="1" height="1" border="0"></a><UL></ul></TD></TR></table>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr><td><div STYLE="MARGIN-LEFT: 0.15in;"><a href="toc.html"><img src="images/team.gif" width="60" height="17" border="0" align="absmiddle"  alt="Team BBL"></a></div></td>
<td align="right"><div STYLE="MARGIN-LEFT: 0.15in;">
<a href=ch10lev1sec21.html><img src="images/prev.gif" width="60" height="17" border="0" align="absmiddle" alt="Previous Page"></a>
<a href=ch10lev1sec23.html><img src="images/next.gif" width="60" height="17" border="0" align="absmiddle" alt="Next Page"></a>
</div></td></tr></table>
</body></html><br>
<table width="100%" cellspacing="0" cellpadding="0"
style="margin-top: 0pt; border-collapse: collapse;"> 
<tr> <td align="right" style="background-color=white; border-top: 1px solid gray;"> 
<a href="http://www.zipghost.com/" target="_blank" style="font-family: Tahoma, Verdana;
 font-size: 11px; text-decoration: none;">The CHM file was converted to HTM by Trial version of <b>ChmD<!--17-->ecompiler</b>.</a>
</TD>
</TR><tr>
<td align="right" style="background-color=white; "> 
<a href="http://www.etextwizard.com/download/cd/cdsetup.exe" target="_blank" style="font-family: Tahoma, Verdana;
 font-size: 11px; text-decoration: none;">Download <b>ChmDec<!--17-->ompiler</b> at: http://www.zipghost.com</a>
</TD></tr></table>
